Operating systems

Authenticator_ciacob is a PHP library to register and authenticate users. It can do open or closed registration, via a master password. User roles are supported. Live authentication can be done by changing session unique ID from one request to another. There is support for password recovery or resetting. It has a built-in hack prevention system that logs a user out when an obsolete session ID is used, or if the IP address changes from one request to another, or when a session lifetime times out. A user is automatically locked out on too many failed login attempts. Locks are IP-based and can be reset by the master. Authenticator_ciacob is easy to configure via external XML files. It is protected against SQL injections by a built-in database traffic encoding and decoding mechanism.

This object can be used to display a marquee that scrolls automatically. It can make the elements inside a given element appear scrolling either horizontally or vertically, so as one contained element disappears, the following element appears. Optionally, the scrolling may stop if the user drags the mouse pointer over the scrolling element. The scrolling speed, the scrolling direction, and the elements seperator are also configurable options.

Feedback Easy is a JavaScript object that can collect a Web site user's feedback using Google Analytics. It shows forms to let the current user provide a feedback comment and rate the site. The provided feedback is recorded as an event in Google Analytics. This object also keeps track of the current user and prevents the feedback form from being presented again.

Whiteboard lets the user draw freehand graphics on a Web page.
It can create a canvas object for the whiteboard (if one does not exist) and let the user draw
on the canvas area by dragging the mouse around.
The color,
thickness,
line join, and line cap of the drawing pen can be configured.
The object can also clear the whiteboard,
export the coordinates of the drawn lines, or import
previously drawn lines.

Page Transitions shows transitions when a user leaves a Web page.
It can produce an animation effect,
so when the user leaves the current page to another, the
effect is applied to make the page disappear and the new page appear.
The object can compose an animation defined programatically or execute
one of many types of
pre-defined page transition effects like fading,
panning,
shrinking,
rotating,
skewing,
etc.